[Freeswitch-users] Gateway responding to random port (rport problem?)

Anthony Minessale anthony.minessale at gmail.com
Tue Oct 19 07:58:44 PDT 2010

Do you see a common theme that you have several threads open regarding
network topology behaviour?

I think you need to audit your network.

On Mon, Oct 18, 2010 at 11:50 AM, Nicolas Brenner <nico at clickfono.com> wrote:
> Hello everyone,
> I'm having an issue with a VoIP provider where the gateway will respond to
> any random port instead of 5080. I sent the corresponding trace to the
> provider and they told me to "disable rport and nat". I removed the auto-nat
> parameters in the corresponding sip profile, but I keep having the same
> issue (I don't think it has anything to do with nat anyway).
> On the trace I noticed that INVITEs sent by FS have an empty rport parameter
> on the Via header, but according to what I've read, this is standard and it
> indicates that the response should be sent to the originating port (5080),
> which is not being done by the gateway ("Avaya SIP Enablement Services").
> How may I go about solving this? should I set the rport parameter to
> something specific (eg. 5080)? or remove it altogether?
> Thanks,
> Nico
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Anthony Minessale II

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